Anti-stem-breaking corn harvester stem pulling roller and harvester stem pulling roller set

Abstract

The utility model discloses an anti-stem-breakage corn harvester stem pulling roller and a harvester stem pulling roller set, relates to the technical field of harvester stem pulling rollers, and aims to solve the problems that an existing corn harvester stem pulling roller is greatly influenced by weather and seasons, when the environment humidity is high or green straw is harvested, the straw is soft and high in toughness, and the straw cannot be broken easily. The stem pulling roller is easy to slip, the stem pulling force is insufficient, and the stem pulling effect is influenced; the utility model relates to a straw stalk pulling device which solves the problem that stalk pulling effect is affected by stalk breakage due to the fact that straw is fragile and easy to break when environment humidity is low or yellow straw is harvested, and comprises a high-low spiral guide cone, a rotating sleeve part, a square rod, a stalk pulling cutter and an L-shaped stalk pulling plate. The lower end of the high-low spiral guide cone is fixedly connected with a square rod, stem pulling cutters are fixed to the side walls of the square rod, an L-shaped stem pulling plate is fixed to the outer side of each stem pulling cutter, and the upper end of the high-low spiral guide cone is rotationally connected with a rotating sleeve piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to a harvester pull stem roller technical field, especially in a kind of anti-breaking stem corn harvester pull stem roller and harvester pull stem roller group. BACKGROUND

[0002] China's agriculture is in a stage of rapid development, gradually towards agricultural mechanization, agricultural production urgently needs to set safety, adaptability, high efficiency, low consumption in one of agricultural machinery. At present, China's corn harvester product, so far, still exist many problems. Corn harvester is difficult to achieve ideal harvesting state when harvesting, there are a variety of fault problems, usually as front block back plug, heavy load, poor harvesting effect, thereby leading to unnecessary oil consumption, make the operation efficiency reduce, not meet the needs of agricultural production, also bring unnecessary economic losses to agricultural production.

[0003] At present, the core device of most self-propelled corn harvester cutting table work is the cooperation of ear picking plate and six muscle pull stem roller, which has the advantages of high pull stem strength, no grain loss and complete ear. But the traditional pull stem roller still has the problems of corn stalk breaking, breaking tip and low pull stem completeness. And it is greatly affected by weather and season. When the environment humidity is large or green straw is harvested, the straw is soft and flexible, the pull stem roller is easy to slip and the pull stem force is not enough, which affects the pull stem effect. When the environment humidity is low or yellow straw is harvested, the straw is brittle and easy to break, which leads to breaking stem and affects the pull stem effect. INVENTION CONTENTS

[0004] The utility model discloses in order to solve the existing corn harvester pull stem roller there is the problem that weather and season are greatly influenced, when the environment humidity is large or green straw is harvested, the straw is soft and flexible, the pull stem roller is easy to slip and the pull stem force is not enough, which affects the pull stem effect, when the environment humidity is low or yellow straw is harvested, the straw is brittle and easy to break, which leads to breaking stem and affects the pull stem effect, and further provide a kind of anti-breaking stem corn harvester pull stem roller and harvester pull stem roller group to solve the problems raised in the above background art.

[0005] The technical scheme of the utility model is:

[0006] A kind of anti-breaking stem corn harvester pull stem roller, including high-low spiral guide cone, rotating sleeve, square bar, pull stem knife and L-shaped pull stem plate;

[0007] The lower end of high-low spiral guide cone is fixedly connected with square bar, the side wall of square bar is fixed with pull stem knife, the outer side of each pull stem knife is fixed with L-shaped pull stem plate, and the upper end of high-low spiral guide cone is rotatably connected with rotating sleeve;

[0008] Further, the high-low spiral guide cone comprises a cylinder, a high spiral part and a low spiral part; the cylinder is fixedly connected with the square rod, and the outer side of the cylinder is alternately provided with two high spiral parts and two low spiral parts; a guide part is arranged at the start of each high spiral part and low spiral part; and each guide part is aligned with the corresponding pulling stalk cutter.

[0009] Further, the outer diameters of the high spiral part and the low spiral part gradually decrease from bottom to top.

[0010] Further, the rotating set comprises a rotating head and a bearing rod; the bearing rod is arranged at the lower end of the rotating head; the bearing rod is rotatably connected with the high-low spiral guide cone through a bearing; the lower end of the rotating head is provided with a sealing groove; the upper end of the high-low spiral guide cone is provided with a convex ring; and the convex ring is rotatably connected in the sealing groove.

[0011] Further, the rotating head is provided with an oil injection hole; an oil channel is formed in the bearing rod and is communicated with the oil injection hole; and the bottom and the side wall of the bearing rod are provided with oil outlet holes of the oil channel.

[0012] Further, the upper end of the rotating head is rotatably connected with a U-shaped fixing seat; and a bolt is detachably fixed on the U-shaped fixing seat.

[0013] Further, the lower end of the square rod is fixedly connected with a transmission square sleeve; the lower end of the transmission square sleeve is provided with a circular protective plate; and a square hole is formed in the lower end of the transmission square sleeve.

[0014] Further, the pulling stalk cutter is provided with a tungsten carbide coating.

[0015] Further, the side of the L-shaped pulling stalk plate close to the high-low spiral guide cone is provided with a chamfer.

[0016] The utility model discloses a kind of harvesting machine pulling stalk roller groups, including two anti-breaking stalk corn harvester pulling stalk rollers, and the axis of two anti-breaking stalk corn harvester pulling stalk rollers is parallelly arranged;The rotational direction of fixed pulling stalk cutter and L-shaped pulling stalk plate in two anti-breaking stalk corn harvester pulling stalk rollers is opposite, the rotational direction of high spiral part and low spiral part in two anti-breaking stalk corn harvester pulling stalk rollers is opposite, and the spiral starting point is 90 °.

[0017] Compared with prior art, the utility model has the following beneficial effects:

[0018] 1. An anti-breaking stalk corn harvester pulling stalk roller is provided with pulling stalk cutter and L-shaped pulling stalk plate, in the process of pulling stalk roller rotation, pulling stalk cutter and L-shaped pulling stalk plate all carry out pulling stalk work.

[0019] 2. The high-low spiral guide cone plays a guiding role. The high spiral part and the low spiral part on the high-low spiral guide cone send the corn stalks into the pulling knife and the L-shaped pulling board as the pulling roller rotates, realizing the guided conveying of the corn stalks.

[0020] 3. The high spiral part and the low spiral part are both provided with the alignment guiding part aligned with the corresponding pulling knife, so that the corn stalks in the high-low spiral guide cone are sent into the pulling knife, the end of the pulling knife cannot bump the corn stalks, and the corn stalks are more smoothly sent into the pulling knife by the high-low spiral guide cone.

[0021] 4. The high spiral part and the low spiral part of the two anti-breaking stalk corn harvester pulling rollers are opposite in rotation direction, so that the high spiral part and the low spiral part on both sides jointly drive the corn stalks to move forward to the pulling knife and the L-shaped pulling board when they relatively rotate. Since the diameter of the corn stalks is 35mm, the spiral starting points are set to be different by 90° to leave a space for accommodating the corn stalks, so that the high spiral part and the low spiral part on the opposite side cooperate with each other when rotating, realizing the conveying of the corn stalks. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Structure diagram of the anti-breaking stalk corn harvester pulling roller Figure I ;

[0023] Figure 2 Structure diagram of the anti-breaking stalk corn harvester pulling roller Figure II ;

[0024] Figure 3 Structure diagram of the anti-breaking stalk corn harvester pulling roller Figure III ;

[0025] Figure 4 Structure diagram of the rotating sleeve and the high-low spiral guide cone Figure I ;

[0026] Figure 5 Structure diagram of the rotating sleeve and the high-low spiral guide cone Figure II ;

[0027] Figure 6 Longitudinal sectional view of the rotating head;

[0028] Figure 7 Structure diagram of the rotating head;

[0029] Figure 8 Longitudinal sectional view of the rotating head and the high-low spiral guide cone;

[0030] Figure 9 Transverse sectional view of the anti-breaking stalk corn harvester pulling roller;

[0031] Figure 10 is an exploded view of the L-shaped stalk pulling plate and the stalk pulling knife;

[0032] Figure 11 is an exploded view of the high-low helical guide cone and the square rod;

[0033] Figure 12 is a structural diagram of the stalk pulling roller set of the harvester Figure I ;

[0034] Figure 13 is a structural diagram of the stalk pulling roller set of the harvester Figure II ;

[0035] Figure 14 is a structural diagram of the stalk pulling roller set of the harvester Figure III ;

[0036] Figure 15 is a transverse sectional view of the stalk pulling roller set of the harvester.

[0037] In the figure: 1, high-low helical guide cone; 2, rotating sleeve; 3, square rod; 4, stalk pulling knife; 5, L-shaped stalk pulling plate; 101, cylinder; 102, high helical part; 103, low helical part; 104, guide part; 201, rotating head; 202, sealing groove; 203, convex ring; 204, bearing rod; 205, oil injection hole; 206, oil channel; 207, U-shaped fixing seat; 208, bolt; 6, transmission square sleeve; 7, square hole; 8, circular guard plate. DETAILED DESCRIPTION

[0038] Specific implementation one: referring to Figures 1-3 and 9-10, a stalk-breaking-preventing corn harvester stalk pulling roller, the embodiment includes a high-low helical guide cone 1, a rotating sleeve 2, a square rod 3, a stalk pulling knife 4, and an L-shaped stalk pulling plate 5;

[0039] The lower end of the high-low helical guide cone 1 is fixedly connected with the square rod 3, the sidewall of the square rod 3 is fixedly provided with the stalk pulling knife 4, the outer side of each stalk pulling knife 4 is fixedly provided with the L-shaped stalk pulling plate 5, and the upper end of the high-low helical guide cone 1 is rotatably connected with the rotating sleeve 2.

[0040] Further, the blade edge of the stalk pulling knife 4 extends out of the square rod 3; the vertical part of the L-shaped stalk pulling plate 5 is a stalk pulling part, and the stalk pulling part of the L-shaped stalk pulling plate 5 is perpendicular to the stalk pulling knife 4. In the rotating process of the stalk-breaking-preventing corn harvester stalk pulling roller, the stalk pulling knife 4 and the L-shaped stalk pulling plate 5 both perform stalk pulling work. The stalk pulling knife 4 has a blade edge that can increase the friction with the corn stalk, thereby improving the stalk pulling efficiency; the L-shaped stalk pulling plate 5 has no blade edge and achieves stalk pulling by extrusion; the L-shaped stalk pulling plate 5 is arranged to prevent the distance between two adjacent stalk pulling knives 4 from being too large, thereby causing the stalk pulling force to be interrupted and leading to stalk breaking. Uniform stalk pulling is achieved without jerking.

[0041] Specific implementation method two: see Figures 4-5 As shown in the figure, the high-low spiral guide cone 1 of the embodiment includes a cylinder 101, a high spiral part 102, and a low spiral part 103; the cylinder 101 is fixedly connected with the square rod 3, and the outer side of the cylinder 101 is alternately provided with two high spiral parts 102 and two low spiral parts 103; the starting position of each high spiral part 102 and low spiral part 103 is provided with a guide part 104, and each guide part 104 is aligned with the corresponding straw drawing knife 4.

[0042] Further, the high spiral part 102 and the low spiral part 103 on the high-low spiral guide cone 1 are rotated with the straw drawing roller, and the corn stalks are sent into the straw drawing knife 4 and the L-shaped straw drawing plate 5, so as to realize the guided conveying of the corn stalks. The starting position of the high spiral part 102 and the low spiral part 103 is provided with the guide part 104 aligned with the corresponding straw drawing knife 4, so as to send the corn stalks in the high-low spiral guide cone 1 into the straw drawing knife 4 in an inclined manner, so that the end of the straw drawing knife 4 does not collide with the corn stalks, and the corn stalks are more smoothly sent into the straw drawing knife 4 from the high-low spiral guide cone 1.

[0043] Specific implementation method three: see Figures 4-5 As shown in the figure, the outer diameter of the high spiral part 102 and the low spiral part 103 of the embodiment gradually decreases from bottom to top.

[0044] Further, the gap of the high-low spiral guide cone 1 facing the corn stalks is in the shape of an inverted cone, so that the corn stalks are more easily sent into the high-low spiral guide cone 1.

[0045] Specific implementation method four: see Figures 6-8 As shown in the figure, the rotating sleeve 2 of the embodiment includes a rotating head 201 and a bearing rod 204; the bearing rod 204 is arranged at the lower end of the rotating head 201, the bearing rod 204 is rotationally connected with the high-low spiral guide cone 1 through a bearing, the lower end of the rotating head 201 is provided with a sealing groove 202, the upper end of the high-low spiral guide cone 1 is provided with a convex ring 203, and the convex ring 203 is rotationally connected in the sealing groove 202.

[0046] Further, the rotating head 201 is the fixed end of the straw drawing roller of the anti-broken-stalk corn harvester, the bearing rod 204 is provided with a bearing between the high-low spiral guide cone 1, so that the straw drawing roller of the anti-broken-stalk corn harvester can rotate around the rotating head 201. The convex ring 203 is rotationally connected in the sealing groove 202, which plays a sealing role and can prevent corn stalks and dust from entering the inside of the bearing.

[0047] Specific implementation method five: see Figures 6-8 As shown in the figure, the rotating head 201 of the embodiment is provided with an oil injection hole 205, the bearing rod 204 is provided with an oil channel 206 communicating with the oil injection hole 205, and the bottom and the side wall of the bearing rod 204 are provided with oil outlet holes of the oil channel 206.

[0048] Further, the oil injection hole 205 and the oil channel 206 are used for injecting butter into the bearing to play a lubricating role, and the bottom and the side wall of the bearing rod 204 are provided with oil outlet holes of the oil channel 206 to facilitate more uniform application of butter to the bearing.

[0049] Specific implementation method six: see Figures 4-8 As shown, the upper end of the rotating head 201 of the embodiment is rotatably connected with a U-shaped fixing seat 207, and a bolt 208 is detachably fixed on the U-shaped fixing seat 207.

[0050] Further, the rotating head 201 is hingedly connected with the U-shaped fixing seat 207, the U-shaped fixing seat 207 is made of cast steel, and the bottom is provided with inclined surfaces on four sides to increase the strength. The U-shaped fixing seat 207 is fixedly connected with the harvester header through the bolt 208.

[0051] Specific implementation method seven: see Figures 9-11 As shown, the lower end of the square rod 3 of the embodiment is fixedly connected with a transmission square sleeve 6, the lower end of the transmission square sleeve 6 is provided with a circular guard plate 8, and the lower end of the transmission square sleeve 6 is provided with a square hole 7.

[0052] Specific implementation method eight: see Figure 10 As shown, the puller knife 4 of the embodiment is provided with a tungsten carbide coating.

[0053] Further, the tungsten carbide coating is cladded on the back side of the puller knife 4 blade edge to play a wear-resistant effect. The tungsten carbide alloy wear-resistant coating is cladded on the back side of the puller knife 4 blade edge through a laser cladding process.

[0054] Specific implementation method nine: see Figure 10 As shown, the L-shaped puller plate 5 of the embodiment is provided with a chamfer near one side of the high-low spiral guide cone 1.

[0055] Further, the chamfer angle is 5°, and the chamfer length is 17.5 cm. The chamfer reduces the collision area of the top of the L-shaped puller plate 5 with the corn stalks, and makes the corn stalks enter the L-shaped puller plate 5 more smoothly.

[0056] Specific implementation method ten: see Figures 12-15 As shown, a kind of harvester puller roller group, the embodiment includes two anti-breaking stalk corn harvester puller rollers, the axes of two anti-breaking stalk corn harvester puller rollers are arranged in parallel;The fixed puller knife 4 and L-shaped puller plate 5 in two anti-breaking stalk corn harvester puller rollers are opposite in rotation direction, the high spiral part 102 and the low spiral part 103 in two anti-breaking stalk corn harvester puller rollers are opposite in rotation direction, and the spiral starting point is 90 °.

[0057] Further, the fixed pulling knives 4 and L-shaped pulling plates 5 in the pulling rollers of the two anti-breaking corn harvesters are opposite in rotation direction, and the starting installation points of the pulling knives 4 and the L-shaped pulling plates 5 are symmetrical along the central plane. During rotation, the pulling knives 4 and the L-shaped pulling plates 5 clamp the corn stalks together with the pulling knives 4 and the L-shaped pulling plates 5 on the other side, thereby completing the pulling.

[0058] Further, the high helical part and the low helical part in the pulling rollers of the two anti-breaking corn harvesters are opposite in rotation direction, so that when they rotate oppositely, the high helical part and the low helical part on the two sides jointly drive the corn stalks to move towards the pulling knives and the L-shaped pulling plates. Since the diameter of the corn stalks is 35mm or so, the starting points of the helices are set to be 90° apart to leave space for the corn stalks, so that the high helical part and the low helical part on the opposite side cooperate with each other during rotation to realize the transportation of the corn stalks.

[0059] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A break-proof stalk corn harvester pull stalk roller characterized by: The high-low spiral guide cone (1), the rotating sleeve (2), the square rod (3), the stem pulling knife (4) and the L-shaped stem pulling plate (5) are included. The lower end of the high-low spiral guide cone (1) is fixedly connected with the square rod (3), the side wall of the square rod (3) is fixedly provided with the stem pulling knife (4), the outer side of each stem pulling knife (4) is fixedly provided with the L-shaped stem pulling plate (5), and the upper end of the high-low spiral guide cone (1) is rotatably connected with the rotating sleeve (2).

2. The snap-free shelled corn harvester pull roll of claim 1 wherein: The high-low spiral guide cone (1) includes a cylindrical body (101), a high spiral part (102) and a low spiral part (103), the cylindrical body (101) is fixedly connected with the square rod (3), the outer side of the cylindrical body (101) is circumferentially alternately provided with two high spiral parts (102) and two low spiral parts (103), the starting position of each high spiral part (102) and low spiral part (103) is provided with a guide part (104), and each guide part (104) is aligned with the corresponding stem pulling knife (4).

3. The snap-free shelled corn harvester pull roll of claim 2 wherein: The outer diameters of the high spiral part (102) and the low spiral part (103) gradually decrease from bottom to top.

4. The snap-free shelled corn harvester pull roll of claim 3 wherein: The rotating sleeve (2) includes a rotating head (201) and a bearing rod (204), the bearing rod (204) is arranged at the lower end of the rotating head (201), the bearing rod (204) is rotatably connected with the high-low spiral guide cone (1) through a bearing, the lower end of the rotating head (201) is provided with a sealing groove (202), the upper end of the high-low spiral guide cone (1) is provided with a convex ring (203), and the convex ring (203) is rotatably connected in the sealing groove (202).

5. The snap-free shelled corn harvester pull roll of claim 4 wherein: An oil injection hole (205) is arranged on the rotating head (201), an oil channel (206) is formed in the bearing rod (204) and communicates with the oil injection hole (205), and the bottom and the side wall of the bearing rod (204) are provided with oil outlet holes of the oil channel (206).

6. The snap-free shelled corn harvester pull roll of claim 5 wherein: The upper end of the rotating head (201) is rotatably connected with a U-shaped fixing seat (207), and a bolt (208) is detachably fixed on the U-shaped fixing seat (207).

7. The snap-free shelled corn harvester pull roll of claim 6 wherein: The lower end of the square rod (3) is fixedly connected with a transmission square sleeve (6), the lower end of the transmission square sleeve (6) is provided with a circular protective plate (8), and a square hole (7) is formed in the lower end of the transmission square sleeve (6).

8. The breakage resistant corn harvester pull roll of claim 1 wherein: The stem pulling knife (4) is provided with a tungsten carbide coating.

9. The breakage resistant corn harvester snout roll of claim 1 wherein: The L-shaped stem pulling plate (5) is provided with a chamfer on the side close to the high-low spiral guide cone (1).

10. A harvester row unit for use with the breakage resistant stalk corn harvester row unit of any of claims 1-9, wherein: The two anti-breaking stem corn harvester pulling rollers are arranged in parallel along the axes, the rotating directions of the stem pulling knives (4) and the L-shaped stem pulling plates (5) in the two anti-breaking stem corn harvester pulling rollers are opposite, the rotating directions of the high spiral parts (102) and the low spiral parts (103) in the two anti-breaking stem corn harvester pulling rollers are opposite, and the starting positions of the high spiral parts (102) and the low spiral parts (103) are different by 90°.

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